Water-temperature-control valve



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turn rnry oioso io rho irouuing point or u'nrho oooiorn 'iiio dorian riioroiorn in non-l "Wiron ino domain@ :ior 'Wnror is siigiir, rroiiod by inroni; noni; rurlnor rirnn ioy ronnpnrrho rrnror Wiii no cirnrrn ofi o rernpornrure nruro unriu'rions Vorp Giono ro 32 EL unr'i nunon rho diornnnrin purpono oi? my umm-@mn i@ Mm M nro iionr/y' rino ion' rornpnrnruro in nilo rnnir prorisron oi? u, oiorioo which. uiii nii'ooiori un surrounding rino oooinr uiii oooi rino noror inl ro puriorni onn oporntion by ironia uniin tiro oooior Vorp rnpidir no nhun ii; uriiii7 niion rrnnsinrrnni from ino rnnriiurn urinoir nuru oirnn'n nin nu ur n nniinoionriy ion ronrporu rounfin in und nfiii no .n.iiioorodi poriornr nnwww f ornur opornition iup" hour unirn niuiirorori di iw iii; inns irororoioro noon proposodi ro 'piuon rooibiy into rho inrnrior oi rho @orion 'iiiio in piro oooiinnV rnnir n rirornnosizurio oiornoniprinoivp o ronriorn riorion nor oniy rririoin Whun prooiniorinino ion rompornrremoiyuonsiriuuiour iiipgirip oioinnrtm Luro im@ boon rondinip noni@ oirhor @nur on @incur oijiooinnndi runny oi tiro iniioronu' tiro roiirigoruring ooiin or noinnir uuror ofi n udrnntugon oni nip" innonrion sirouiri ibo nonni :n iiingiror rornpornturo izo rho linnn so ns ro proily upprooiniodi un rino' Sumo booornos horror un noni; ripening or tiro Wuior in rho oooior0 undiorniood by roioronoo ro rho ioiiorring nio" V@unir devions, iio'rroror har/o noi; proron @au soripiion when oonsiriorori in oonnoorion with isinoior iooouuso iiroy Worn depending onthu uooonopanying oirnnrinngu. iiioforring ro iiroiy ""or rirnir opuruiion upon rho vuriurho druwings9 Fig.. i is o, noouionui rinuf oi n ro rions in izornpornruro ortho runner in tiro rnnir Wator oooior equipped Winn my inroniaion., un

und tiro romporniuro oi rho Whole Voiurno oi Fig., 2 in u, liongiiudlinui soorionui Viouf on u Warrior in rino innir Wouioi nur@ ro chungo oon-l 'imno Senio oi my novell oonrroi @ionico andi sidloruioip iooioro rho rhormostniio eiernonr Fig. iiiusrrntos iiro uppiiourion oi ingr4 in Wouidi oporuro., Furrirormornj moroiju niiur volition no uni olocizrio cirouii; ro inuiro und 45 ringu oiiiiho roirigornring ooiis would not, in. Yorouir rim suino., Referring# non ro ino airain nanny insrunoon, prouon; rooning of rho un ing in doruii, roioronco ohnrnoior j ind'giouion iur in. ihn cooling ooiis anni in rho typo Whoro goneruiiy n honi insuioiori ouioinor, or com Wnrrnor Wnior uns udinittoci to tiro ronir u parrlnoni; or any preferredvoinstructiony uuoir group ,doni oi Wnronvrus Wanted und rho rornas is oustomari y used. lin sociu founininny tho 5o pnrnruro of rho Wntor boing cooled? would portion or the cabinet shown boingn ndupiedr run rnrpy oonsidornioiy inniend or 'boing main to form u chamber 6 which serres us u Wu,- ruinod ur. n uniform omi vory iow tempornter ooolor. This @number is uuuiomnrii/ @Meri uur@ an it is with rho employment of my in with Wat-er to nuiismntiuiiy rho iouoi indi uonriun.. cated by roferunou ohoruoter 7 so un ro nun @no of rho primary purposon or my pronm met-gu tiro rofriguruting ooiin wiriuir urn im connected with a refrigerating machine in the usual manner and the water cooling coils 9 of usual construction which receive their supply of'water through a pipe 11 from the city mains and deliver it through a` pipe 12 to the draw-olf faucet 13.

It being desirable to maintain the water in the cooling elements 9 very close tothe freezing point, vthe capacity of the refrigerating coils is such that the water in thev chamber willbe frozen adjacent to such coils and, usually depending on the amount of approaches the cooling elements, water will be automatically drawn off. and delivered from 'the elements thereby admitting to the elements water fromthe pipe 11 which is at a higher temperature so that freezingof the water in the cooling elements is prevented. With this end in view, pipe 15 leading from the lowermost element 9 is' connected with the casing 16 of my improved device and a discharge pipe 17 leading from the casin serves to deliver the water discharged om the cooling elements-through the casing to the sewer or other desirable place of disposal. The freezing of the water within the elements is precluded by permitting this discharge of water at intervals suiiiciently frequent to prevent the freezing.

From Fig. 2, it will be observed that the casin A16 is shaped to provide, in the conduit etween the pipes l5 and 17, a valve seat 18 adapted to be closed by a Valve 19 which is normally urged toward its seat by an expansion spring 21. The stem of the valve projecting through the valve passage surrounded by the seat is attached to a cylindrical member 22 adapted to reciprocate Within the casing. The lower end of this cylindrical member is closed and' intermediate its ends it is provided with a circumferential flange 23` to which the upper end of a corrugatedex ansible member 24, commonly called a be lows, is connected. The lower end of the bellows is attached to the circumferential ange of a base block 25 thereby forming a closed chamber within the bellows and around the cylindrical member 22. This-chamber indicated by reference character 26 is filled with distilled water through a port which is later-sealed b a plug 27. The illin of this chamber Wit water is done before tie apparatus is all assembled and thereafter the filled bellows is introduced into a shell 28, the lower end of which may be closed by a bottom wall 29 and the upper end is then attached to the lower end of the casing 16 by swagin,- in the upper edge. of the shell as indicate l at 81 or by threading it onto the casing. The assembly of the shell and casing provides another chamber outside of the bellows and this chamber is then filled with glycerine 32 or other suitable nonefreezing solution having a low specific heat, through a port 33 which is then closed by a plug 34.

The conduitin the casing 16 through the valve seat 18 communicates with the space or chamber 35 within the lower end of the tubular member 22 through `a plurality of ports 36 and a depending tube 37. Communication is established between thc chamber 35 and the discharge p lv'ough ports 38 and an` annular passage 39.

The device being assembled as shown in Fig. 2 and the pipe 15 being connected with the lower element 9 of the`water cooler so that the thermostatic device is exposed to the proximity of the cooler and the pipe 17 havingl been connected to any suitable point of discharge, the operation of the device is as follows: The expansible element 24 being normally contracted since the water iu the space 26 `does not expand or contract with variations in temperature to any appreciable extent, the valve 19 is normally closed against its seat and escape of water through the device from the element 9 of the cooler is prevented. The refrigerating apparatus being in operation, ice will begin to form around the refrigerating coils 8 and the formation will progress toward the cooler at 9. The glycerine or other fluid surrounding the expansible element 24 being nonfreczable and of low specific heat, the heat units of the distilled water in the chamber 26 will be conducted through this medium and the walls of the casing so that the temperature of this distilled water will be'theI same as that of the surrounding water in the compartment 6. vThe water of this compartment eing city water and not entirely pure will freeze at a slightly lower temperature than the distilled water.

The frequent withdrawal of water from the cooling elements 9 through the faucet will tend to keep these elements at a slightly higher temperature than that of the water in the chamber 26.' -When the temperature of the distilled water within the device is reduced to 32o F. the same as the temperature of the water surrounding the casing, the maximum eiciency of the cooler will have been reached and this temperature will be maintained until approximately. 142 heat units, that is the latent heat of water, have been abstracted from the distilled water in chamber 26, whereupon ,this water will begin liu) units to said chamber when said freezable solution causes said element to expand.

9. In a temperature control device, the

rcombination of a. hollow casing, provided within the inlet and outlet port-s, a. valve interposed between said ports and adapted to control the flow of a liquid therethrough, a tubular member depending romsaid valve and establishing communication between said ports when the valve is open, a thermostatic element including a reezable liquid surrounding said, tubular member and subjected to the temperature ofthe fluid in said member, saidthermostatic element being disposed within and spaced from the Walls of said casing, and a non-freezing liquid of low specific heat surrounding said thermostatic element within the casing.

10. The combination, with. a Water cooling compartment containing cooling liquid refrigerating coils, and a submerged container for the Water to be cooled, of a temperature control device connected with said Water container and comprising a thermostatic device includingl a reezable liquid submerged in said cooling fluid, and a'valve controlled by said element for permitting the delivery of Water from said container u on the soliditication of said reezable li ui and means for directing the Water so de ivered into proximity to said thermostatie element to reliquity the previously solidified li uid.

11. The combination, Wit'i a Water cooling compartment containing cooling liquid and refrigerating coils and a container for the water to be cooled submerged in said liquid of a `temperature control device connected with said container and including means for causing the delivery of a quantity of water from said container With its temperature closely approaching the freezing point.

12. The combination, with a cooling compartment containing a cooling iiuid and refrigerating coils and a container for the water to be cooled submerged in said iluid,- of a temperature control device connected Vwith said container and including means actuated by latent heat only for causing the`delivery of water from said container to prevent the actual freezing thereof within the container.,

13. A temperature control device comprising an expansible thermostatic element con-.

15. A temperature control device com risingan expansible thermostatic element 'laving the interior thereof filled with distilled Water and the exterior thereoi:` surrounded by glycerine, said element being insensitive to temperature variations alone of said Water but adapted to be actuated by latent heat thereof.

16. A temperature control device for liquids comprising a compartment containin a non-freezing medium adapted to be place in heat conducting relation to the liquid, the

temperature of which is to be controlled, a second compartment containing a medium susceptible to a change in state but substantially insensitive to temperature variations alone of said medium and having a lag characteristic with respect to the medium in the first compartment, and means responsive to the temperature cont-rol device for automatically admitting heat units thereto.

17. A temperature control device comprising an expansible thermostatie element normally subject to the temperature of a cooling medium in which the device is immersed and adapted to be actuatedonly by the latent heat ot the liquid included in said element for automatically delivering heat units to said element.

18. The combination with a cooling com- .compartment containing a cooling fluid, a

container submerged in said cooling fluid and containing Water to be cooled therein, and means to supply heat units to the Water within the container, said means being controlled by the temperature of the cooling fluid.

20. The combination with a water cooling compartment containing coolin refrigerating coils and a container for the Water to be cooled submerged in said liquid, of a temperature control device connected with said container and including means for automatically causing heat units to be delivered to the container, and a delivery of a quantity of Water from the container, when its temperature closely approaches the freezing point.

21. The combination 4with a Water coolin compartment containing` cooling liquidnn refrigerating coils and a. container for the water to be cooled submerged in said liquid, of a temperature control device connected with said container and inc ding means for l liquid and automatically causing heat units to be deliving a therlnostatic element including water ered to the container, and a delivery of a adapted to actuate said element, said element 10 quantity of water from the container, when being inoperable by temperature 'variations its temperature closely approaches the reezalone of said Water but adapted to be actu- 5 ing point, said heat units substantially unated by the latent heat thereof.

affecting the condition of the cooling me- In witness of the foregoing I alix my sigdum. nature.

22. A temperature control device compris- FRENCH E. DENNSON. 

